Aluminum/Steel Construction Of The BMW 5 Series

Aluminum/Steel Construction Of The BMW 5 Series

The most interesting characteristic about the 2004 BMW 5 Series, from a collision repair perspective, is its construction. The front-end structure from the cowl forward is all-aluminum, while the rest of the vehicle’s structure is steel. The front portion of the lower rails is aluminum; the portion of the lower rails under the floor pan is steel. A rear portion of the upper rails is steel, however the rest of the upper rails are made of aluminum. The floor pan and the lower portion of the A-pillars are steel, both joined to an aluminum cowl panel.

Source: www.i-car.com
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